The stainless steel grinding core is precision CNC cutting and shaping, the sharp blade can quickly and evenly cut coffee beans, the grinding is labor-saving and smooth, and the grinding time is short. Easy to adjust grinding thickness to meet different needs The milling blade with 55-58HRC hardness in 5-axis CNC machining realizes uniform grinding with almost no excessively coarse grains. At the same time, the generation of fine powder is minimized.